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Related Party Transactions - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Supplier Concentration Risk | Cost of Goods, Total      
Related Party Transaction [Line Items]      
Percentage of purchases from key suppliers 84.00% 84.00% 85.00%
Moss & Associates LLC | Customary Payments for Remodeling of Corporate Headquarters      
Related Party Transaction [Line Items]      
Payment for related party transaction $ 124 $ 951 $ 291
Amount payable to related party 0    
Greenberg Traurig, P.A. | Customary Fees for Legal Services      
Related Party Transaction [Line Items]      
Payment for related party transaction 131 475  
Amount payable to related party 0    
Carrier and Its Affiliates | Supplier Concentration Risk      
Related Party Transaction [Line Items]      
Amount payable to Carrier and its affiliates, net of receivables 71,000 75,000  
Revenues from sales to Carrier and its affiliates $ 84,000 $ 64,000 $ 56,000
Carrier and Its Affiliates | Supplier Concentration Risk | Cost of Goods, Total      
Related Party Transaction [Line Items]      
Percentage of purchases from key suppliers 62.00% 62.00% 62.00%